Simplex Trading’s NewAmsterdam Pharma NAMS Stock Holding History

Simplex Trading’s Portfolio NAMS Stock Details NAMS Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$115K	Sell	3,600 -13,500	-79%	-$440K	﹤0.01%	4921
2025 Q4	$600K	Buy	17,100 +2,300	+16%	+$83.7K	﹤0.01%	3121
2025 Q3	$420K	Sell	14,800 -1,700	-10%	-$40.8K	﹤0.01%	4047
2025 Q2	$298K	Sell	16,500 -300	-2%	-$5.47K	﹤0.01%	4074
2025 Q1	$343K	Sell	16,800 -17,900	-52%	-$398K	﹤0.01%	3787
2024 Q4	$891K	Buy	+34,700	New	+$737K	﹤0.01%	2949

Other funds holding NAMS

FLSM

Frazier Life Sciences Management Palo Alto, California $3.89B AUM 201.1% 1-Year Est. Return

Capital World Investors Los Angeles, California $733B AUM 35.63% 1-Year Est. Return

RCM

RA Capital Management Boston, Massachusetts $9.44B AUM 157.3% 1-Year Est. Return

FIS

FCPM III Services Naarden, Netherlands $722M AUM 73.61% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

BCLSI

Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Deerfield Management New York $8.48B AUM 99.04% 1-Year Est. Return

Viking Global Investors Stamford, Connecticut $35.7B AUM 21.3% 1-Year Est. Return

DFO

Duquesne Family Office New York $3.38B AUM 61.92% 1-Year Est. Return

Simplex Trading's NAMS Position: Q4 2025 in Review

Simplex Trading sold out of NewAmsterdam Pharma (NAMS) in Q4 2025, closing a stake of 3,372 shares — an estimated $123K sold.

Simplex Trading first reported a position in NAMS in Q3 2024 and held it in 5 quarters. The position peaked at $101K in Q2 2025. 186 funds tracked by Wall St. Rank hold NAMS as of Q4 2025.

Simplex Trading reported no remaining NewAmsterdam Pharma position as of Q4 2025 after selling out during the quarter.
Simplex Trading sold 3,372 NewAmsterdam Pharma shares in Q4 2025, an estimated $123K.
Simplex Trading first reported a position in NewAmsterdam Pharma in Q3 2024 and held it in 5 quarters.
Simplex Trading's NewAmsterdam Pharma position peaked at $101K in Q2 2025.
186 funds tracked by Wall St. Rank held NewAmsterdam Pharma as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.